The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2003
Filed:
Oct. 02, 2002
Musashi Yamaguchi, Kanagawa, JP;
Susumu Komiyama, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A control device and control method for a hybrid vehicle is disclosed having an electric storage detecting section which detects a state of charge (SOC) of an electric storage device A target running efficiency calculating section serves as a unit to calculate a target value of a running efficiency, indicative of a proportion of a given physical quantity, in terms of a drive power rate required for driving the vehicle such that the higher the SOC detected value, the smaller will be the target value. A target unit operating point calculating section calculates a target value of a unit operating point, providing the target running efficiency, from among operating points, that cause a power rate of an internal combustion engine to be utilized at the running efficiency with the maximum efficiency, of a unit (the internal combustion engine a clutch a motor and a stepped power transmission ), and a target unit operating point actualizing section operates the unit at the target unit operating point.